Hazardous-Location Conduit Expansion Unions

Use these expansion union fittings to connect sections of conduit or attach conduit to electrical enclosures in systems that may experience slight longitudinal movement as temperatures fluctuate. The fittings have an expansion joint that telescopes in and out to prevent connection problems as the conduit expands and contracts. Suitable for use with rigid or intermediate metal conduit (RMC or IMC), they are rated for hazardous locations where dust ignition or explosion are concerns.